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Method for making fog face release paper

A production method and technology of release paper, which can be used in papermaking, paper coating, textiles and papermaking, etc., can solve the problem of uneven haze on the surface of pressure-sensitive adhesive, unstable peeling force of release film, and inconsistent sanding depth, etc. problems, to achieve the effect of stable peeling force, good haze effect and convenient operation

Active Publication Date: 2012-01-25
太仓斯迪克新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages: the depth of grinding is inconsistent, resulting in unstable peeling force of the release film, there is a risk of poor release, and the haze of the pressure-sensitive adhesive surface is uneven, resulting in product waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment one: a kind of manufacture method of matte release paper, its manufacture process is as follows:

[0044] Step 1: First, treat the surface of the base paper of the release paper so that there is no paper scraps or stains on the surface.

[0045] Step 2: On the surface of one side of the base paper of the release paper, use a laminating machine to coat a layer of PE coating layer, and then cool it; the laminating machine can use the high-speed extrusion single-sided flow produced by Changzhou Laiyi Plastic Machinery Co., Ltd. Extended composite unit type A.

[0046] Step 3: Prepare the matte release agent

[0047] First, prepare the materials according to the following mass percentages:

[0048] Hydroxy silicone oil 27%;

[0049] Curing agent 2%;

[0050] Catalyst 6%;

[0051] Polyurethane adhesive 42%;

[0052] Fumed silica 3%;

[0053] Filler 20%.

[0054] The curing agent is methyl hydrogen-containing silicone oil; the catalyst is platinum; the fill...

Embodiment 2 5

[0060] Embodiment 2-5: A kind of production method of matte release paper

[0061]1. The raw material formula of the matte release agent is shown in the following table:

[0062] Embodiment two Embodiment Three Embodiment four Embodiment five Hydroxy silicone oil 25% 35% 25% 30% Hardener 1% 2% 1% 3% catalyst 5% 6% 5% 5% polyurethane adhesive 50% 35% 34% 33% fumed silica 3% 4% 5% 2% filler 16% 18% 30% 27%

[0063] Note, the % in the table represents the mass percentage content.

Embodiment 2

[0064] The viscosity of the hydroxy silicone oil described in Example two is 10000cps. The viscosity of the hydroxy silicone oil described in Example three is 14000cps. The viscosity of the hydroxy silicone oil described in Example 4 is 16000cps. The viscosity of the hydroxyl silicone oil described in Example five is 13000cps.

[0065] The viscosity of the polyurethane adhesive described in Example 2 is 2100cps. The viscosity of the polyurethane adhesive described in Example 3 is 2300cps. The viscosity of the polyurethane adhesive described in Example 4 is 2500cps. The viscosity of the polyurethane adhesive described in Example five is 2700cps.

[0066] Two, preparation method is the same as embodiment one.

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Abstract

The invention relates to a method for making fog face release paper, which mainly comprises the following steps of: a first step of laminating a laminated layer on one lateral surface of body paper of the release paper by a laminating machine and cooling; a second step of coating a layer of fog face release agent on the laminated layer; and a third step of drying the fog face release agent. A rawmaterial formula of the fog face release agent comprises 25 to 35 percent of hydroxyl silicone oil, 0.5 to 4 percent of curing agent, 2 to 8 percent of catalyst, 15 to 55 percent of polyurethane adhesive, 0.3 to 5 percent of fumed silica and 10 to 50 percent of filler, wherein the curing agent is methyl hydrogen silicone fluid; the catalyst is platinum; and the filler is talcum powder of which the practical diameter is less than or equal to 15 microns. The method disclosed by the invention has simple production process and is convenient to operate. The cost is reduced. The concave-convex surface of laminated paper is filled and leveled up by the release agent mixed with a fog agent. The fog face release paper which has stable stripping strength and ensures the adhesive surface of a pressure sensing adhesive to have a good haze effect can be produced, so that the adhesive surface has a low-reflection effect.

Description

technical field [0001] The invention relates to a method for making a matte release paper, and belongs to the technical field of release material preparation. Background technique [0002] The release paper is called release paper and anti-sticking paper. It is a kind of anti-sticking paper that prevents the prepreg from sticking and can protect the prepreg from contamination. [0003] The release paper is made by pouring a layer of PE film with a certain thickness on the surface of the base paper, and then coating the silicone release agent on the surface layer of the environmentally friendly PE film, so that it can show extremely lightness to various organic pressure-sensitive adhesives. And stable release force. [0004] Different organic pressure-sensitive adhesives, such as hot melt adhesives, acrylic adhesives, and pressure-sensitive adhesives of rubber systems, etc., require different release forces of the release film. The force is adjusted accordingly to achieve a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/00D21H19/14D21H19/28
Inventor 金闯
Owner 太仓斯迪克新材料科技有限公司
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